/**
* @group disconnected
* @expectedException Predis\NotSupportedException
* @expectedExceptionMessage The current profile does not support WATCH and UNWATCH
*/
public function testThrowsExceptionOnUnsupportedWatchUnwatchInProfile()
{
$connection = $this->getMock('Predis\\Connection\\SingleConnectionInterface');
$client = new Client($connection, array('profile' => '2.0'));
$tx = new MultiExecContext($client, array('options' => 'cas'));
$tx->watch('foo');
}
/**
* @group disconnected
*/
public function testProperlyDiscardsTransactionAfterServerExceptionInBlock()
{
$connection = $this->getMockedConnection(function (CommandInterface $command) {
switch ($command->getId()) {
case 'MULTI':
return true;
case 'ECHO':
return new ResponseError('ERR simulated failure on ECHO');
case 'EXEC':
return new ResponseError('EXECABORT Transaction discarded because of previous errors.');
default:
return new ResponseQueued();
}
});
$client = new Client($connection);
// First attempt
$tx = new MultiExecContext($client);
try {
$tx->multi()->set('foo', 'bar')->echo('simulated failure')->exec();
} catch (\Exception $exception) {
$this->assertInstanceOf('Predis\\Transaction\\AbortedMultiExecException', $exception);
$this->assertSame('ERR simulated failure on ECHO', $exception->getMessage());
}
// Second attempt
$tx = new MultiExecContext($client);
try {
$tx->multi()->set('foo', 'bar')->echo('simulated failure')->exec();
} catch (\Exception $exception) {
$this->assertInstanceOf('Predis\\Transaction\\AbortedMultiExecException', $exception);
$this->assertSame('ERR simulated failure on ECHO', $exception->getMessage());
}
}
/**
* Transaction context initializer.
*
* @param array $options Options for the context.
* @param mixed $callable Optional callable object used to execute the context.
* @return MultiExecContext|array
*/
protected function initMultiExec(array $options = null, $callable = null)
{
$transaction = new MultiExecContext($this, $options ?: array());
return isset($callable) ? $transaction->execute($callable) : $transaction;
}
/**
* Adds the commands needed for the count function
*
* @param MultiExecContext $multi A MultiExecContext instance
* @param string $subject A unique identifier, for example a session id or an IP
* @param int $bucket Bucket
* @param int $count Count
*/
private function addMultiExecCount(MultiExecContext $multi, $subject, $bucket, $count)
{
// Get the counts from the previous `$count` buckets
$multi->hget($subject, $bucket);
while ($count--) {
$multi->hget($subject, (--$bucket + $this->bucketCount) % $this->bucketCount);
}
}
